Several centers have examined factors that influence patient and graft survival after OLT, but no consensus exists as to which variables accurately predict outcome after OLT.2- 7 According to these studies, factors that have increased the risk of death or graft loss for patients undergoing OLT vary and include UNOS status, Child's classification, fulminant hepatic failure, ABO incompatibility, compromised renal function, and infection before transplantation. In addition, some studies have reported a detrimental effect of intraoperative blood loss and massive transfusion requirements after liver transplantation.2- 3,7- 8 In a previous study, we conducted an analysis of several factors on the need for blood transfusion.12 These factors were recipient's age at the time of transplantation, sex, Child's classification, UNOS status, preoperative hematocrit, prothrombin time, partial thromboplastin time, platelet count, and fibrinogen level. In addition, other factors examined were primary liver disease, year of transplantation, history of abdominal surgery, transjugular intrahepatic portosystemic shunt placed prior to transplantation, use of venovenous bypass technique for transplantation, cold ischemia time, and operative time. The univariate analysis showed the following factors to be associated with OLT without blood transfusions: Child's classification, UNOS status, lack of previous right upper quadrant surgery, preoperative hematocrit, prothrombin time, activated partial thromboplastin time, piggyback technique, operative time, adult recipient status, and year of transplantation. A regression analysis showed that UNOS status (healthier patients required less blood), preoperative hematocrit, piggyback technique, operative time, and year of transplantation remained independently associated with OLT without transfusion of RBCs.12 Unfortunately, donor information was not available for the analysis.